#include <iostream>
#include <string>

namespace GDS
{
    namespace GZS
    {
        const char *city = "广州市";
        namespace THQ
        {
            const char *region = "天河区";
                namespace ADDR
                {
                    const char *address = "网易科技公司";
                }
        }
        
    }

    namespace SZS
    {
        const char *city = "深圳市";
        namespace FTQ
        {
            const char *region = "福田区";
                namespace ADDR
                {
                    const char *address = "腾讯科技有限公司";
                }
        }
    }

}

using namespace GDS::GZS::THQ;
using namespace GDS::SZS::FTQ;



int main()
{
    std::cout << GDS::GZS::city << std::endl;
    std::cout << GDS::GZS::THQ::region << std::endl;
    std::cout << GDS::SZS::FTQ::region << std::endl;
    std::cout << GDS::GZS::THQ::ADDR::address << std::endl;
    std::cout << GDS::SZS::FTQ::ADDR::address << std::endl;

    return 0;
}